Is it right to have ?

Well, sometimes I feel like I want to have with my boyfriend (we've been going out for about 4-5months) especially when it's around that 'time of the month' but other times I feel sort of scared when I think about it, because I'm scared it'll go wrong - even though I'm on the Pill and I have condoms - and I'm scared I'll be unappealing to him naked.. What should I do?