Breastfeeding 20 month old - is this the end?? Please help!!

[happynappies]

dd has been happily bf morning and night for months, and I really wanted to continue as long as possible. I'm 9 weeks pg with #2 and dd has just got a really horrible cold. At bed-time she pointed to her nose, and said she didn't want to feed. Her nose has been really blocked, and she hasn't fed now since Friday. I've tried to express a couple of times, but kept thinking that she'd be ok at the next feed, as she always always wants to bf last thing at night and first thing in the morning. Realistically is this the end? It is so upsetting when she says no, and pulls away, sometimes crying. Should I continue to offer her a feed, or should I continue trying to express more regularly or will my supply be ok for a while, or do I just have to face facts? Could it be to do with the pregnancy as much as the cold? Arrghhhh!!! Someone please help v. distressed