If you have a great boyfriend kick the other to the curb. Thats not fair to your boyfriend to want any kind of attention from your bd. Your bd should give attention to the baby and only the baby unless you two get back together. In my op you should wait till baby arrives to allow bd in your life, meanwhile get the attention you need or want from your boyfriend.
Agree with the comment above. Its just a little feeling your going thru , you won't want to regret it so forget about it and enjoy that good bf of yours!! :) bd shouldn't be talked to until baby's here anyway