Pregnant!

So as you ladies know from previous post that my boyfriend and I are trying to conceive. Well it's been almost 4months now and I'm still getting my period. I want to create a baby with my bf so bad ❤❤ but I kept getting my freaking period 😭😩Now my bf is saying he's surprised that I'm not pregnant yet, he thought I would be pregnant by now😩 😩 do you guys think we're just being impatient or should we be worried?