I'm 18+2 weeks and yesterday and today I've been having pretty bad cramping it feels like a really bad period ..... They recently just started to get worse and its bothering me quite a bit especially when I try to lay down or stretch back while sitting ... Its starting to worry me a bit no bleeding or spotting...baby boy seems to be fine just swimming and kicking around and happy but Its just strange any ideas of what it could be and if I should see a doctor ?