OMG ☺ hello I'm new to this group ND needed so many answers answered. So here goes nothing. okay. So January 30th was the first day of my period lasted till February 5th. My boyfriend and I have been together 2years and on my birthday February 18th . We decided to try for a baby. It is March 11th and today was my ovulation day. We did the deed and realize I will be able to take a home test March 24th or before with is the day I start my period witch intact if I start I understand we are not pregnant. But here's the thing. Say if I got pregnant today. March 11th 2018 how do I find out how far along I am if they say you add on this amount of of added 7 days to you last period to subtracting 3 months. It says I'd be 5weeks. But how if I didn't ovulate till today and he's been you know inside of me since my B-Day February 18th. We have sex A LOT so he's doing it every time we have sex now but Im lost on to why it says I'm 5weeks by my last period if I am just conciving today that is if in 2 weeks I am pregnant. So on the 24th of March comes and I missed my period am I already 5weeks by then or 7 since its saying I am 5 now but how am I now if I didn't ovulate until today I am confused please help me understand. Also if I ovulated today and am in the mix of being pregnant when would my dude date e and how far along am I really. I've taken 3 pregnancy test since we did have sex on my B-Day and that was the first time he did it in me that would mean I'd be pregnant now but all the test have been negative. So show am I 5weeks. I am so lost I hope one of you can help me. Please sorry for the long rant just trying to give the whole story. Thanks for reading and replying to those that do.